Gravity, air turbulence, the shape of the object, it’s density and surface condition.
Gravity is simple: the higher the force of gravity, the higher the acceleration of the object, independant of it’s mass.
Air turbulence: air drags on objects moving through it, and this tubulence affects how the drag depends on the speed. At low turbulence, drag scale linearly with velocity, whereas at higher turbulence, drag can scale with the square or even the cube of velocity. The higher this kind of (speed dependent) drag, the lower the object’s top speed (terminal velocity).
The shape: different shape have different drags. A long pointy thing has less than a big flat one.
Density: if two objects have the same shape and size, they will experience the same drag. But the denser (and therefore heavier) object will have more mass, and the same drag will affect it’s speed less than that of the less dense object.
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Answer:
Gravity, air turbulence, the shape of the object, it’s density and surface condition.
Gravity is simple: the higher the force of gravity, the higher the acceleration of the object, independant of it’s mass.
Air turbulence: air drags on objects moving through it, and this tubulence affects how the drag depends on the speed. At low turbulence, drag scale linearly with velocity, whereas at higher turbulence, drag can scale with the square or even the cube of velocity. The higher this kind of (speed dependent) drag, the lower the object’s top speed (terminal velocity).
The shape: different shape have different drags. A long pointy thing has less than a big flat one.
Density: if two objects have the same shape and size, they will experience the same drag. But the denser (and therefore heavier) object will have more mass, and the same drag will affect it’s speed less than that of the less dense object.
Explanation: